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Abstract
Nowadays, different studies on Incremental Sheet Forming have been taken due to the increasing demand for flexible manufacturing processes. This process is applicable in different areas, such as prototyping and the production of small batches of parts, always searching for lower manufacturing costs. This work analyzes how the variation of the process strategies (punch diameter and the vertical step down) influences the workpieces strain ends. These experimental studies were compared to the numerical simulation. The results found show concordance between simulated and experimental results.
Highlights
Over the last decades, the forming area has improved its knowledge, both in terms of the materials used as well as in the flexibility and process cost reduction
The cost reduction is focused on the need to manufacture a low cost material die and be partially applied to the process, according to Kwiatkowski et al (2010), Hirt et al (2004) and Bambach (2010)
A conventional forming limit curve (FLC) cannot be directly applied to Incremental Sheet Forming (ISF) process as a failure criterion due to strains in ISF process be highly superior and have no linear strain path
Summary
The forming area has improved its knowledge, both in terms of the materials used as well as in the flexibility and process cost reduction. The Incremental Sheet Forming (ISF) is basically focused on the production of small batches of parts, fast prototyping with process flexibility and reduced operational cost (Jeswiet 2005 and Arruda 2010). As a failure criterion for sheet metal forming process, commonly the Forming Limit Diagram (FLD) in combination with a forming limit curve (FLC) is used. A conventional FLC cannot be directly applied to ISF process as a failure criterion due to strains in ISF process be highly superior and have no linear strain path. Silva et al (2010) and Kuzman et al (2010) find maximal strains superior to FLC when applied the ISF process in the metal sheet forming A conventional FLC cannot be directly applied to ISF process as a failure criterion due to strains in ISF process be highly superior and have no linear strain path. Silva et al (2010) and Kuzman et al (2010) find maximal strains superior to FLC when applied the ISF process in the metal sheet forming
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